body,html
  line-height 1
  font-weight 200
  font-size 12px
  font-family 'PingFang SC', 'STHeitiSC-Light', 'Helvetica-Light', arial, sans-serif

  .clearflx
    display inline-block
    &:after
      display block
      height 0
      line-height 0
      content "."
      clear both
      visibility hidden

@media (-webkit-device-pixel-ratio: 1.5),(device-pixel-ratio: 1.5)
  .border-1px
    &::after
      -webkit-transform: scaleY(0.7)
      -transform: scaleY(0.7)
@media (-webkit-device-pixel-ratio: 2),(device-pixel-ratio: 2)
  .border-1px
    &:after
      -webkit-transform: scaleY(0.5)
      -transform: scaleY(0.5)
